What Fertilizer Do I Use When Soil Is Deficient in Phosphorus?

Question

What fertilizer do I use when soil is deficient in phosphorus? What do I use when soil is deficient in calcium,  nitrogen, or potassium?

Answer 1

This article should help with phosphorus: https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/phosphorus-plant-growth.htm

For calcium: https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/soil-and-calcium.htm
For nitrogen: https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/nitrogen-plant-fertilizer.htm
For potassium: https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/plants-potassium.htm